Texas Instruments DRV5056A1QLPG

Overview

DRV5056A1QLPG from Texas Instruments is a unipolar ratiometric linear Hall-effect sensor in TO-92 package, designed for precise analog position sensing using south-pole magnetic fields. It delivers 200 mV/mT sensitivity at 5 V, 20 mT linear range, 0.6 V quiescent output, and operates across –40°C to +125°C with magnet temperature compensation. Used in industrial automation, medical devices, and appliance controls where high-accuracy analog magnetic measurement is required.

For engineers reviewing the DRV5056A1QLPG datasheet, DRV5056A1QLPG pinout, DRV5056A1QLPG application, or DRV5056A1QLPG equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation insights, and two confirmed alternative options for unipolar linear Hall sensing.

Technical Context

The DRV5056A1QLPG implements a fully integrated ratiometric analog signal chain: Hall element biasing, offset cancellation, precision amplification, and magnet temperature compensation (STC = 0.12%/°C) - all referenced to VCC. Its unipolar response produces a monotonic 0.6 V baseline output that increases linearly with south-pole flux density perpendicular to the TO-92 package top surface.

It supports dual supply ranges (3.0–3.6 V and 4.5–5.5 V), achieves 20 kHz bandwidth with <10 µs propagation delay, and maintains ±1% linearity over its 20 mT range. The device's ratiometric architecture ensures consistent ADC digitization when the external converter shares the same VCC reference.

Key Specifications

Pinout & Package

DRV5056A1QLPG uses the LPG (TO-92, 3-pin) through-hole package, 4.00 mm × 1.52 mm footprint, with Hall element centered ~1.03 mm from bottom plane and sensitive to magnetic flux perpendicular to the top surface.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar unipolar linear Hall sensing applications.

Compared with DRV5055A1QLPG and TMAG5170A1QDGKR, the DRV5056A1QLPG uniquely combines unipolar analog output, built-in magnet temperature compensation, and TO-92 through-hole compatibility - making it optimal for cost-sensitive, thermally demanding, single-axis position feedback where analog simplicity is essential.

Availability

DRV5056A1QLPG is available at Aetrix Electronics and suitable for industrial automation, medical device feedback, and home appliance control requiring stable component supply and long-term production continuity.

Supply support for DRV5056A1QLPG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in magnetic sensing innovation.

The DRV5056 product line delivers ratiometric linear Hall sensors optimized for high-accuracy unipolar position measurement in harsh environments - targeting industrial, medical, and consumer systems needing analog simplicity and thermal robustness.

FAQ

What is the magnetic polarity response of the DRV5056A1QLPG?

The DRV5056A1QLPG responds exclusively to the south magnetic pole: output voltage increases linearly with south-pole flux density perpendicular to the TO-92 package top surface. It produces no response to north-pole fields, enabling unambiguous position detection in single-direction motion systems. This behavior is intrinsic to the device's unipolar architecture and is confirmed in the SBAS644C datasheet Section 6.3.2.

Does the DRV5056A1QLPG require an external voltage reference for accurate operation?

No - the DRV5056A1QLPG uses a ratiometric architecture where output scale is directly proportional to VCC. When paired with an ADC that also uses VCC as its reference voltage, supply tolerance errors cancel out. This eliminates need for external references and simplifies system design while maintaining accuracy across 4.5–5.5 V supply variations.

What is the maximum operating temperature for the DRV5056A1QLPG?

The DRV5056A1QLPG is rated for continuous operation from –40°C to +125°C ambient temperature. Its integrated magnet temperature compensation (STC = 0.12%/°C) ensures stable sensitivity and linearity across this full range, as verified in Section 5.3 and Figure 5-3 of the SBAS644C datasheet. Junction temperature must remain ≤150°C under all conditions.

Can the DRV5056A1QLPG be used with a 3.3 V supply?

No - the DRV5056A1QLPG variant is specified only for 4.5–5.5 V operation. While the DRV5056 family includes 3.3 V-compatible versions (e.g., DRV5056A1QDBZR), the A1QLPG suffix denotes the 5 V-optimized TO-92 variant. Using 3.3 V would violate Recommended Operating Conditions and result in undefined sensitivity and output behavior per Section 5.3.

How does the DRV5056A1QLPG handle magnetic field noise or EMI?

The DRV5056A1QLPG integrates on-die filtering and low-noise amplification, achieving 130 nT/√Hz input-referred noise density at 5 V. For further noise reduction, TI recommends adding an external RC low-pass filter at the OUT pin - with resistor and capacitor values selected to match required bandwidth (e.g., 1 kΩ + 10 nF for ~16 kHz cutoff). Direct capacitor connection without series resistance must be avoided to prevent instability.